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Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...

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Correction: Editorial: Schools as an arena for health-promoting physical activity.

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Acute physiological and perceptual responses in the FIT FIRST FOR ALL school-based physical activity program.

Helgi Winther Olsen1, Tórur Sjúrðarson2, Bára Berghamar Danielsen3

  • 1Faculty of Education, University of the Faroe Islands, Tórshavn, Faroe Islands. helgio@setur.fo.

Scientific Reports
|May 29, 2026
PubMed
Summary

The FIT FIRST FOR ALL program effectively promoted moderate-to-vigorous physical activity in schoolchildren. Enjoyment remained high across all fitness levels, indicating a successful school-based intervention.

Keywords:
Acute physiological and perceptual responsesExercise intensityHealth-related fitnessPhysical activity enjoymentSchool-based physical activity

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Area of Science:

  • Pediatric Exercise Science
  • School-Based Physical Activity Interventions
  • Public Health

Background:

  • Structured physical activity programs are crucial for combating sedentary lifestyles in youth.
  • School-based interventions offer a scalable approach to improve children's health and fitness.
  • The FIT FIRST FOR ALL program aimed to enhance engagement in physical activity among students.

Purpose of the Study:

  • To evaluate the acute physiological and perceptual responses to the FIT FIRST FOR ALL program.
  • To assess the program's intensity and impact on enjoyment across different cardiorespiratory fitness levels.
  • To determine the program's effectiveness in improving cardiorespiratory fitness in schoolchildren.

Main Methods:

  • A non-randomized cluster study involving 179 pupils (aged 7-16) in the Faroe Islands.
  • Three weekly 40-minute sessions delivered over 10 weeks as part of a school-wide initiative.
  • Physiological (heart rate, accelerations) and perceptual (exertion, enjoyment) measures in a subsample (n=53), stratified by baseline fitness.

Main Results:

  • Sessions consistently achieved moderate-to-vigorous physical activity intensity (67-70% max heart rate).
  • Pupils spent over 57% of session time in moderate-to-vigorous intensity zones.
  • Enjoyment was comparable across fitness groups, despite higher exertion in lower-fit pupils. Cardiorespiratory fitness showed improvement, with a trend for greater gains in the lowest fitness tertile.

Conclusions:

  • The FIT FIRST FOR ALL program successfully elicits health-promoting physical activity intensity in school settings.
  • The intervention demonstrates high enjoyment levels across diverse age and fitness groups.
  • School-wide, teacher-led delivery of FIT FIRST FOR ALL is a viable strategy for promoting youth physical activity and fitness.